locus error

[lukamar]

locus command in 1.7.0 as well as in 1.9.0 is failing on all examples, e.g.

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P:=element(line(i, i+1))
G:=isobarycenter(-1,1,P)
locus(G,P)

This returns an error.

[parisse]

I can not reproduce in Xcas when each line is in a distinct level (that is the way locus is supposed to be run, from a geometry level).
BTW, can you fix in your source this small bug viewtopic.php?f=4&p=12499

[lukamar]

Indeed, when the commands are in separate entries it works.
I have fixed the bug, thanks!

[lukamar]

But why plotinequation fails? This is a single commandline (with official Xcas 1.7.0 in Ubuntu, but also with compiled 1.9.0):

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plotinequation(x^2-y^2<3,[x=-2..2,y=-2..2],xstep=0.1,ystep=0.1)

It does not display the graphics, but also not an error:

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gl_y=((-14.188818801) .. 14.188818801),gl_ortho=1

[lukamar]

Also, this command hangs:

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interactive_plotode(sin(t*y),[t,y])

[parisse]

Rounding error bug for plotinequation, branches are not connected correctly.
interactive_plotode is expecting clicks inside a geo level or in the DispG window inside Xcas.

[lukamar]

This also may be a bug: the command

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plot(sin(x),x=-5..5,display=red)

returns an empty list. However, if I remove the second argument (the range for x), all is ok.

[lukamar]

Another thing: entering comments with Alt+C does not work in xcas anymore. The only effect of Altc+C is that the current entry changes label color to blue.

[parisse]

This also may be a bug: the command

Code : Tout sélectionner

plot(sin(x),x=-5..5,display=red)

returns an empty list. However, if I remove the second argument (the range for x), all is ok.

Indeed, fixed in source.

[parisse]

Another thing: entering comments with Alt+C does not work in xcas anymore. The only effect of Altc+C is that the current entry changes label color to blue.

There is a shortcut collision here. Alt+C is modifying the interpreter for the level to "Caspy" (that is Xcas compatible Python). Probably the best is to remove the comment shortcut.